biodiversity Flashcards
who coined the term biodiversity?
edward wilson
name the medicinal plant that grows in himalyan region in terms of potency and chemical tht the plant produces. what chemical does it produces?
rauwolfia vomitoria
reserpine
how many genetic strains of rice has and how many varieties of mango are present in india
50,000- rice
1000- mango
which ghats have greater amphibian species diversity ?
western ghats
who placed a species diversity at about 7 million
robert may
more than _ of all the species are animals whereas plants are no more than _%
70-a
22- p
which group among animals have the most number ofspecies which make up 70% of the total
insects
out of every 10 animal on this planet _ are insect
7
which group has the most no of species in the world more than the combined total of the species of fishes , ambhibians , reptiles and mammals
fungi
in vertebrates most no of species is of _ taxa and least of _
most- fishes
least- amphibians, mammals
in invertebrates the least no of species is of which taxa
crustaceans
among plants which taxa has least no of species
lichens
if we accept may’s estimates how many species have been discovered yet
22%
species diversity _ when we move from equator to poles
decreases
_ harbour more species than temperate and polar region
tropics
a forest in tropical region _ has upto _ times as many species of vascular plants as a forest of equal area in a temperate region like the midwest of the USA
EQUADOR
10
the largely tropical ___ rain forest have greatest biodiversity on earth
amazon
tropical environment unlike temperate are less _ and more _ and predictable
less seasonal and more constant
who gave species are relationship
alexander von humboldt
the graph of species are relationship is ?
rectangular hyperbola
what is the logarithm equation of species are relation ship and what does z means in it
log s= log c + z log a
z is regression coefficient
the value of lies between
0.1 to 0.2
the slope for frugivorous and mammals in tropical forest in different countries is
1.15
who found that plots with more species showed less year to year variation in total biomass
tilman
increased diversity contributed to _ productivity, tilman
higher
river poppet hypothesis was given by?
paul ehrlich
name the forest which is lungs of the planet
amazon rain forest
what is endemism
species confined to a region and not found anywhere else
